Kungani Amandla E-Weld Emancane Emishini Yokushisela I-Capacitor Discharge?

Lesi sihloko sinikeza{0}}ukuhlaziywa okujulile kwezizathu ezinhlanu eziyinhloko zamandla aphansi e-CD welder. Ukuhlanganisa idatha yomkhakha ogunyaziwe nolwazi olusebenzayo, sethula isu elihlelekile, elisebenzisekayo lokuthuthukisa ipharamitha nokunakekelwa kwemishini ukuze sikusize uzuze ukushisela okuqinile, okubukeka kahle, nokuphelele.

 

 

Umnyombo wokushisela i-CD ulele ekukhishweni ngokushesha kwe-capacitor. Amandla agcinwa{1}}ngokushaja-i-capacitor enkulu{2}}enkulu bese ededelwa endaweni yokuxhumana ye-workpiece ngesikhathi esifushane kakhulu (imvamisa ama-millisecond angu-3 ukuya kwangu-10). Lokhu kukhiqiza umsinga omkhulu osheshayo nokushisa, okwenza i-weld nugget.

• Ifomula yokubala amandla:

Amandla okushisela i-$E$ (Joules) yesishiseli se-CD anqunywa amandla okushisela i-$C$ (Farads) kanye ne-voltage yokushaja engu-$V$ (Ama-Volts):

E=\\frac{1}{2}CV^2

Kuyacaca ukuthi i-voltage inomphumela oyisikwele emandleni okushisela, okwenza kube yisici esibucayi kakhulu ekulawuleni amandla okushisela.

• Ukhiye we-Metric Wamandla Weld{0}Usayizi We-Weld Nugget:

Amandla e-Weld ngokuyinhloko ancike kusayizi we-Weld Nugget ewumphumela. Amazinga emboni kanye nemithetho ye-empirical ngokuvamile idinga ububanzi be-nugget $d$ ukuze buhlangabezane nefomula yokuhlola elandelayo ukuze kuqinisekiswe amandla anele:

d \\cishe (4 \\sim 5)\\sqrt{t}

Lapho i-$t$ ingubukhulu bocezu lokusebenza oluzacile (ngo-mm). Uma ubukhulu be-nugget bangempela buncane kunaleli zinga, amandla okushisela angeke anele.

 

 

Amandla okushisela anganele awabangelwa isici esisodwa kodwa awumphumela wezinkinga ezihlanganisiwe kuwo wonke amapharamitha wokushisela, isimo semishini, nokulungiswa kwengcezu yokusebenza.

 

Imingcele yokushisela inquma ngokuqondile ukwakheka nosayizi we-weld nugget. Noma yikuphi ukuchezuka kwepharamitha kungaholela ekudluliselweni kwamandla okungasebenzi kahle noma usayizi we-nugget ongekho ezingeni.

• Okwamanje Akwanele (Amandla):Uma i-voltage yokushaja isethwe iphansi kakhulu, amandla akhishiwe angu-$E$ awanele. Insimbi ayikwazi ukuncibilika ngokuphelele, okuholela ekushiseleni okuncane futhi okungenzeka "kungancibiliki-kudlulele" noma ukungasebenzi kahle kwe-weld.
• Isikhathi Sokukhipha Sifushane Kakhulu:Ukusetha isikhathi esingalungile kungavimbela ukunqwabelana kokushisa okwanele endaweni yokuxhumana. Ukukhishwa kuphelelwa ngaphambi kokuba insimbi ifinyelele esimweni esincibilikisiwe esifanelekile.
• I-Unreasonable Electrode Force:Amandla amancane kakhulu aholela ekuqineni kokuxhumana, okungabangela i-spatter kanye nokushiswa kwendawo. Ngokuphambene, amandla amaningi anciphisa ngokushesha ukumelana nokuxhumana, okuholela ekukhiqizeni ukushisa okwanele, okuvimbela ukwakheka kwe-nugget.

 

I-electrode iyindawo eyinhloko yokudlulisa amandla, futhi isimo sayo sithinta ngokuqondile ukuminyana kwamanje kanye nokufana kokudluliselwa kwamandla.

• I-Wear and Deformation:Ukusebenzisa-isikhathi eside kubangela ukuthi ithiphu le-electrode liguge futhi nobubanzi bukhuphuke. Njengoba indawo yokuxhumana ye-electrode ikhula, ukuminyana kwamanje kwehla kakhulu, okuholela ekushiseni okunganele endaweni yeyunithi ngayinye kanye nokwehluleka ukwenza i-weld nugget esebenzayo.
• I-oxidation kanye nokungcoliswa:Uma indawo ye-electrode i-oxidized noma ingcoliswe ngamafutha, ikwandisa kakhulu ukumelana nokuxhumana. Lokhu kubangela ukushisa kugxile{1}ezindaweni ezingashisi phakathi kwe-electrode nendawo yokusebenza, kunciphisa ukusebenza kahle kokushisela futhi okungenzeka kubangele isipatha sokuqala.
• Ukuhluleka Kwesistimu Yokupholisa:Ngisho nangesikhathi esifushane sokukhipha, ama-electrode adinga ukupholisa okuphumelelayo. Uma isistimu yokupholisa amanzi ivalekile noma izinga lokugeleza linganele (ukugeleza okujwayelekile okunconyiwe kungu-4–6 L/min), izinga lokushisa le-electrode lizokhuphuka, lisheshise ukuguga nokonakala, futhi kubeke engcupheni ukuphindaphinda kwe-weld.

 

Ukuhlanzeka kwendawo yokusebenza kuyisidingo sokushisela ngempumelelo ukumelana. Noma yikuphi ukungcola okungaphezulu kungavimbela ukugeleza kwamanje.

• Izendlalelo ze-Oxide:Ikakhulukazi lapho ushisela izinto ezisebenza kakhulu njenge-aluminium noma ithusi, ungqimba lwe-oxide olungaphezulu lunokumelana okuphezulu kakhulu kunensimbi eyisisekelo. Ungqimba oluwugqinsi lwe-oxide luhlakaza amandla amanje, luvimbele ukugxila kwamandla futhi luholele ekushiseleni okubandayo noma ekushiseleni okungamanga.
• Amafutha Nokugqwala:Uwoyela ongaphezulu nokugqwala kudala ukumelana nokuxhumana okungazinzile, okubangela ukukhiqizwa kokushisa okungalingani kakhulu nokusabalalisa ngesikhathi sokushisela. Lokhu kuyimbangela evamile ye-spatter kanye namaphoyinti e-weld abuthakathaka.

 

Ama-welder e-Capacitor Discharge adinga ukuzinza okuphezulu kakhulu ezingxenyeni zawo zangaphakathi. Ukunakekelwa okunganele kuholela ekonakaleni kwesistimu, kuthinte ukuphindaphinda kwekhwalithi ye-weld.

• Ukuguga Kwe-Capacitor: Ukusebenza isikhathi eside kubangela ukuthi umthamo we-capacitor u-$C$ wehle. Ngokusekelwe kufomula ethi $E=\\frac{1}{2}CV^2$, ukwehla ku-$C$ kuholela ngokuqondile kumandla okukhipha angempela anganele, okuholela ekunciphiseni kwamandla e-weld ngisho noma i-voltage engu-$V$ ihlala ingashintshi.
• I-Pneumatic System Fluctuation: Umfutho womoya ongazinzile uthinta ngqo amandla e-electrode. Uma ingcindezi ishintshashintsha, amandla okushisela nawo azoguquguquka, abangele ukumelana nokuxhumana okungahambisani kanye nokukhiqizwa kokushisa ngeshisela ngayinye, okuholela ekuphindaphindeni kwamandla e-weld.

 

Ekushiseleni i-projection (njengokushisela amantongomane), ukunemba kokuqondanisa kwe-workpiece ne-electrode, kanye nokuqina kwe-fixture, kubalulekile.

• {{0}Izindawo Zokuxhumana Ezingafani:Uma ama-projections angathinti i-workpiece ngokufanayo, i-current izogxila ekuqageleni okumbalwa kuphela. Lokhu kubangela ukushisa okweqile kwendawo kanye ne-spatter yokugcina, kuyilapho ezinye izilinganiso zihluleka ukwenza i-weld nugget esebenzayo ngenxa yamandla anganele.
• I-Shunting noma Iziyingi ezimfushane:Ukwehla kokumelana nokufakwa kwe-insulation kwe-fixture noma isibambi se-electrode kungabangela ukushunqika kwamanje noma amasekhethi amafushane asendaweni, kunciphise ukusebenza kwamanje okugeleza endaweni yokushisela futhi ngaleyo ndlela kwehlise amandla okushisela.

 

 

 

Ukuze kuxazululwe ngokuphelele amandla e-weld we-Capacitor Discharge ebuthakathaka, kufanele kusetshenziswe izinyathelo ezihlelekile nezijwayelekile zokuphatha nokugcinwa kwazo.

 

"Awukho-usayizi-olingana{2}}yonke ipharamitha." Uhlelo lokushisela oluthuthukisiwe kufanele lusungulwe ngezinto ezihlukene kanye nobukhulu.

 

Isici Sokuthuthukisa	Isu kanye Nezincomo	I-Authoritative Reference Data
I-Welding Voltage (V)	Lungisa ngokusekelwe kubukhulu bocezu lokusebenza kanye nokusebenza kwempahla. Lokhu kuyindlela eyinhloko yokulawula amandla i-$E$.	Amandla okushisela i-$E$ alingana ne-$V^2$; ukulungiswa okuncane kunomthelela omkhulu.
I-Electrode Force (P)	Qinisekisa ukuguqulwa kwepulasitiki okwanele ngenkathi uvimbela ukumelana nokuxhumana ukuthi kube phansi kakhulu. Amashidi azacile adinga isikhathi esiphansi samanje + sokukhipha isikhathi eside; amashidi awugqinsi adinga high current + high force.	Amandla anconyiwe e-lithium battery nickel strip welding: 35 PSI ukuya ku-95 PSI.
Isikhathi Sokukhipha (t)	Qinisekisa isikhathi esanele sokunqwabelana kokushisa ukuze wenze i-nugget, kodwa ugweme isikhathi esiningi esiholela ku-sptter.	Isikhathi esijwayelekile sokukhipha i-CD weld: 3 ms ~ 10 ms.
I-Nugget Diameter (d)	Qinisekisa ngama-weld wokuhlola ukuthi i-nugget diameter $d$ ihlangabezana nemfuneko evamile $d \\approx (4 \\sim 5)\\sqrt{t}$.	Uma ububanzi be-nugget bungaphansi kuka-80% wezinga, amandla e-weld azokwehla kakhulu.

 

Ukugcinwa kwe-electrode okujwayelekile kuyisihluthulelo sokuqinisekisa ukuphindaphinda kwekhwalithi ye-weld.

• Ukugqoka Okuvamile Nokushintsha:Gada ngokuqinile ukugqokwa kwethiphu ye-electrode. Lapho i-diameter ye-electrode igqoka ngaphezu kuka-15% kuya ku-20% wosayizi wayo wangempela, kufanele igqokiswe noma ishintshwe. Ukugqoka kufanele kugcine ukuma okuqondile kanye ne-engeli yobuso be-electrode.
• Ukuhlanza kanye{0}}Ne-Oxidation:Hlanza indawo ye-electrode ukuze ususe ama-oxide nokungcola ngaphambi kokuhamba ngakunye noma ngemva kwesikhathi eside sokuphumula. Ngamanzi-ama-electrode apholile, hlola njalo futhi uhlanze iziteshi zokupholisa, uqinisekise ukuthi izinga lokushisa lamanzi alidluli ama-degree angu-30 ukuze ulondoloze ubulukhuni be-electrode kanye nokuhamba kahle.

 

Ukwelashwa kwangaphambili{0}}kuyisisekelo sokuthuthukisa izinga lempumelelo nokusimama kokushisela.

• Ukususa amafutha:Sebenzisa ama-degreaser ochwepheshe noma ukuhlanza nge-ultrasonic ukuze uqinisekise ukuthi indawo yokushisela ayinayo nhlobo insalela kawoyela.
• Ukususwa kwe-Oxide:Ukuze uthole izinto ezenziwe nge-oxidized kalula njenge-aluminium nethusi, sebenzisa ukuhuzuka komshini (isb., i-sandpaper, ibhulashi locingo) noma ukucosha amakhemikhali ukuze ususe ungqimba lwe-oxide engaphezulu ngaphambi kokushisela. Ngokufanelekile, ukushisela kufanele kuqedwe phakathi namahora angu-4 okwelashwa ukuze kuvinjwe{4}}ukukhishwa kabusha kwe-oxidation.

 

Ukusungula uhlelo oluphelele lokuqapha okokusebenza kanye nokuphathwa kwenqubo kubalulekile ukuze kuzuzwe-amandla aphezulu,{1}}amashisela aphezulu.

• Ukulinganisa Kwezikhathi:Yenza ukulinganisa kochwepheshe kwe-CD capacitor, i-transformer, kanye nesistimu ye-pneumatic okungenani kanye ngonyaka. Gxila ekuqapheni umthamo wangempela ongu-$C$ we-capacitor ukuze uqiniseke ukuthi ukuwohloka kwawo kungaphakathi kwebanga elamukelekayo.
• Ukuqapha-Isikhathi Sangempela kanye nama-alamu:Sebenzisa isistimu yokuqapha ehlakaniphile ukuze uqoqe-idatha yesikhathi sangempela ku-voltage, i-peak current, namandla e-electrode phakathi nenqubo yokushisela. Uma idatha iphambukela ngaphandle kwebanga lokubekezelela elingu-±5% elisethiwe, isistimu kufanele ilume ngokuzenzakalelayo noma ivale ukuze ivimbele ukukhiqizwa{3}}kwezingxenye ezingavumelani.
• Ukuqeqeshwa Okujwayelekile Komsebenzi:Thuthukisa ukuqonda komsebenzisi wezimiso zokushisela i-CD, ukuqonda kokulungisa ipharamitha, namakhono avamile okuxazulula izinkinga, ukuguqula "isipiliyoni{0}esisekelwe ekusebenzeni" sibe "inqubo evamile."

 

 

Isiphetho

Udaba lwamandla okushisela ama-CD abuthakathaka empeleni kuwumphumela wokungalingani phakathi kokufaka kwamandla, ukusebenza kahle kokudlulisa, kanye nokulungiswa kocezu lokusebenza. Ngokufanisa ngokunembile imingcele yokushisela (ikakhulukazi i-voltage namandla), ukunamathela ngokuqinile ezindinganisweni zokunakekela ama-electrode (ukulawula ukuguga nokupholisa), kanye nokuthuthukisa inqubo yokwelapha{1}}yangaphambili, abakhiqizi bangathuthukisa ngokuphawulekayo ukuzinza kwe-welding namandla okugcina e-weld. Izinkampani kufanele zihlanganise la masu okuthuthukisa ekuphathweni kwazo kwansuku zonke zokukhiqiza ukuze ziqinisekise ikhwalithi yomkhiqizo futhi zithole ukushiselwa kwama-CD okuphumelelayo, okuthembekile.